The friendship with the left parties is a temporary phase and should not be taken as a permanent affair by the congress. The left parties are opportunistic and have an agenda which at best is not in the long term interest of the country. Hence its better to severe ties with them at the earliest for the congress.
But yes there are some quarters in congress as well which look at their personal gains as compared to that of the nation and the party. But then tahts waht saw the debacle of congress.
PM ready for resigning willl be a right step if he cant enforce his directions. At least he will give a personal example of selfless service and some bit of self dignity. Who knows it may be a turning point for the fortunes of congress!!!!